Im helping to reinstall engine and transmission into a friends 86 GN. There are 4 leads coming out of the main electrical harness, This is the harness that runs in front of AC box on passenger side and along the back of the engine in the oval shaped convoluted plastic tubing, The 4 leads in question all have ring terminals on them and they are very short. I think they are grounds that get bolted to the back of the passenger (right side) cylinder head as they really dont have length to go anywhere else. Also with them being a ring terminal they would not interconnect to another wire.. Do they just getbolted to the back of the passenger side head. Do they get bolted 2 leads per bolt as the length seems to suggest that. There are 2 that are about 2 inches long and the other 2 are about 4 inches long. Any help would be appreciated Thanks